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1.
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[Place of publication not identified] : [publisher not identified], 1999.
English | N 40(165) DE 34 |
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2.
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Cologne [Germany] : German Association for the Protection of Intellectual Property (GRUR), 1996.
German | 29 DE |
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3.
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London : Intellectual Property Pub., 1988.
English | F 67 KAR.I |
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4.
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Deventer : Kluwer Law and Taxation Publishers, 1991.
English | N 739 DOM.P |
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